20003032245400 has 384 divisors, whose sum is σ = 49437379555200. Its totient is φ = 7515570585600.

The previous prime is 20003032245377. The next prime is 20003032245407. The reversal of 20003032245400 is 454223030002.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20003032245407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 13766711074 + ... + 13766712526.

It is an arithmetic number, because the mean of its divisors is an integer number (128743175925).

Almost surely, 2^{20003032245400} is an apocalyptic number.

20003032245400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20003032245400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24718689777600).

20003032245400 is an abundant number, since it is smaller than the sum of its proper divisors (29434347309800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20003032245400 is a wasteful number, since it uses less digits than its factorization.

20003032245400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1959 (or 1950 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

Adding to 20003032245400 its reverse (454223030002), we get a palindrome (20457255275402).

The spelling of 20003032245400 in words is "twenty trillion, three billion, thirty-two million, two hundred forty-five thousand, four hundred".